Abstract
Greenhouse gas emissions are the cause of climate change, which in turn has a negative impact on people and the environment. Reducing the fuel consumption of conventional engines reduces climate-damaging emissions and can, thus, contribute to achieving climate protection goals. In addition, fuel costs are a major cost factor for long-haul trucking. Eco-driving helps to reduce fuel costs when driving on inclines and declines. Due to the high mass and, therefore, high kinetic and potential energy of heavy trucks, fuel can be saved by coasting before slopes and before speed limits. However, energy-efficient and non-cooperative driving, i.e., without considering other road users, can lead to increased fuel consumption as vehicles impede each other. To resolve conflicts in road traffic, a variety of methods that enable cooperative driving exist. In general, vehicles communicate with vehicle-to-everything (V2X) and negotiate a joint driving strategy. This paper presents a method that combines cooperative and energy-efficient driving and examines the impact on fuel consumption during uphill driving. The method relies on the exchange of trajectories for cooperative maneuver coordination. By computing a strategic trajectory, energy-efficient driving with long coasting maneuvers is enabled. In the simulative evaluation, travel over hills with two and three trucks is investigated. It is shown that the combination of cooperative and eco-driving reduces the fuel costs for traffic.
Highlights
Greenhouse gases are a driver of climate change and it has a negative impact on the environment and humans
The mean value was calculated from the test runs
A concept was presented in detail that combines eco- and cooperative driving
Summary
Greenhouse gases are a driver of climate change and it has a negative impact on the environment and humans. This affects Central European countries such as Germany, where the climate is relatively mild and, here, for example, an increase in extreme weather events is assumed [1]. In addition to the direct influence of these weather events, indirect consequences are expected, for example, the increase of health problems among people is mentioned in [2]. In the report [4], actions are proposed and the goal to make European climate neutral by the year 2050 has been given. In addition to the electrification of the powertrain, reducing fuel consumption is one way of making a contribution
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